It is said that a reliable treatment for the disease will be applied at least two or three months away and still it ______on animals.
#100264
A
is testing
B
has tested
C
is being tested
D
has been tested
推荐题目
We had hoped to catch the 10：20 train, but _____ it was gone.
#103722
A
found
B
had found
C
would find
D
would have found
Before the first nonstop flight made in 1949,it______necessary for all planes to land for refueling.
#104556
A
would be
B
has been
C
had been
D
would have been
I don't really work here; I ____ until the new secretary arrives.
#104181
A
just help out
B
have just helped out
C
am just helping out
D
will just help out
—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
#101422
A
have been caught
B
have caught
C
had caught
D
was caught
More patients ___________ in hospital this year than last year.
#104611
A
treated
B
have treated
C
had been treated
D
have been treated